class Point {
	int x,y;
	void setXY(int m,int n) {
	x=m;
	y=n;
	}
}
public class p65 {
	public static void main (String args[] ) {
	Point p1,p2;
	p1=new Point ();
	p2=new Point ();
	System.out.println("p1的引用:"+p1);
	System.out.println("p2的引用:"+p2);
	p1.setXY(1111,2222);
	p2.setXY(-100,-200);
	System.out.println("p1的x,y坐标:"+p1.x+","+p1.y);
	System.out.println("p2的x,y坐标:"+p2.x+","+p2.y);
	p1=p2;
	System.out.println("将p2的引用赋给p1后:");
	System.out.println("p1的引用:"+p1);
	System.out.println("p2的引用:"+p2);
	System.out.println("p1的x,y坐标:"+p1.x+","+p1.y);
	System.out.println("p2的x,y坐标:"+p2.x+","+p2.y);
	}
}

